Portion of a shoe sole



FIG. 1 is a bottom plan view of a portion of a shoe sole showing our new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a bottom plan view of a portion of a shoe sole showing a second embodiment of our new design;

FIG. 4 is a perspective view thereof;

FIG. 5 is a bottom plan view of a portion of a shoe sole showing a third embodiment of our new design;

FIG. 6 is a perpsective view thereof;

FIG. 7 is a bottom plan view of a portion of a shoe sole showing a fourth embodiment of our new design; and,

FIG. 8 is a perpspective view thereof.

The broken lines showing of the remainder of the sole is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe sole, as shown and described. 